Combined cycle power device

ABSTRACT

The combined cycle power device is provided in the present invention and belongs to the field of energy and power technology. A combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An evaporator has a vapor channel connected with a high-temperature heat exchanger, a compressor has a vapor channel connected with the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected with an expander, the evaporator has a low-pressure vapor channel connected with the compressor and the condenser respectively. The high-temperature heat exchanger has the heat source medium channel connected with the outside, the condenser has the cooling medium channel connected with the outside, the evaporator has the heat source medium channel connected with the outside, the expander connects with with the compressor and transmits power.

FIELD

The present invention belongs to the flied of energy and powertechnology.

BACKGROUND

Cold demand, heat demand and power demand are common in human life andproduction. It is an important way to obtain and provide power by theconversion of thermal energy into mechanical energy. In general, thetemperature of heat source reduces and varies with the release of heat.When fossil fuels are used as the primary energy, the heat source hasthe dual characteristics of both high-temperature and variabletemperature. This makes it is difficult to transform more heat energyinto mechanical energy using the power device based on a single thermalcycle. For high-quality fuel, the traditional gas-steam combined cyclecan be used to obtain a high thermal efficiency. However, there arestill some problems to be solved, such as high cost, large investmentand low thermal efficiency to be improved.

Take the vapor power device with the outside combustion for example, itsheat source has the dual characteristics of high-temperature andvariable temperature. For those vapor power devices based on the Rankinecycle, the material's temperature resistance and pressure resistanceabilities and safety concerns limit the parameters of the cycle'sworking medium. Therefore, there is a big temperature difference betweenthe working medium and the heat source, which leads to big irreversibleloss and low efficiency. This means that there is great potential toimprove the thermal efficiency.

Humans need to use heat energy simply, actively, efficiently forachieving power. Therefore, the present invention provides a combinedcycle power device with high thermal efficiency, strong safety,adaptation to high-temperature heat source or variable temperature heatsource and response to various fuels.

THE CONTENTS OF THE PRESENT INVENTION

The combined cycle power device are mainly provided in the presentinvention, and the specific contents of the present invention are asfollows:

1. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser and an evaporator.An evaporator has a vapor channel connected with a high-temperature heatexchanger after that a condenser has a liquid refrigerant pipe whichpasses through a pump and connects with the evaporator, a compressor hasa vapor channel connected with the high-temperature heat exchanger, thehigh-temperature heat exchanger has a vapor channel connected with anexpander, the evaporator has a low-pressure vapor channel connected withthe compressor and the condenser respectively after that the expanderhas a low-pressure vapor channel connected with the evaporator. Thehigh-temperature heat exchanger has the heat source medium channelconnected with the outside, the condenser has the cooling medium channelconnected with the outside, or the evaporator has the heat source mediumchannel connected with the outside, or the expander connects with withthe compressor and transmits power. The expander connects with with thecompressor and the pump and transmits power.

2. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator anda heating unit. an evaporator has a vapor channel connected with ahigh-temperature heat exchanger after that a condenser has a liquidrefrigerant pipe which passes through a pump and connects with theevaporator, a compressor has a vapor channel connected with thehigh-temperature heat exchanger, the high-temperature heat exchanger hasa vapor channel connected with an expander, a heating unit has alow-pressure vapor channel connected with the compressor and thecondenser respectively after that the expander has a low-pressure vaporchannel connected with the heating unit. The high-temperature heatexchanger has the heat source medium channel connected with the outside,the condenser has the cooling medium channel connected with the outside,the evaporator has the heat source medium channel connected with theoutside, the heating unit has the heated medium channel connected withthe outside, the expander connects with with the compressor andtransmits power. Or the expander connects with with the compressor andthe pump and transmits power.

3. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator anda high-temperature regenerator. An evaporator has a vapor channel whichpasses through a high-temperature regenerator and connects with ahigh-temperature heat exchanger after that a condenser has a liquidrefrigerant pipe which passes through a pump and connects with theevaporator, a compressor has a vapor channel which passes through thehigh-temperature regenerator and connects with the high-temperature heatexchanger, the high-temperature heat exchanger has a vapor channelconnected with an expander, the expander has a low-pressure vaporchannel connected with the high-temperature regenerator, the evaporatorhas a low-pressure vapor channel connected with the compressor and thecondenser respectively after that the high-temperature regenerator has alow-pressure vapor channel connected with the evaporator. Thehigh-temperature heat exchanger has the heat source medium channelconnected with the outside, the condenser has the cooling medium channelconnected with the outside, or the evaporator has the heat source mediumchannel connected with the outside, the expander connects with with thecompressor and transmits power. Or the expander connects with with thecompressor and the pump and transmits power.

4. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator andthe second high-temperature heat exchanger. An evaporator has a vaporchannel connects with the second high-temperature heat exchanger afterthat a condenser has a liquid refrigerant pipe which passes through apump and connects with the evaporator, the second high-temperature heatexchanger has a vapor channel connects with an expander, a compressorhas a vapor channel connects with the high-temperature heat exchanger,the high-temperature heat exchanger has a vapor channel which passesthrough a intermediate vapor inlet channel and connects with theexpander, the evaporator has a low-pressure vapor channel connected withthe compressor and the condenser respectively after that the expanderhas a low-pressure vapor channel connected with the evaporator. Thehigh-temperature heat exchanger and the high-temperature heat exchangerhave the heat source medium channels connected with the outside, thecondenser has the cooling medium channel connected with the outside, orthe evaporator has the heat source medium channel connected with theoutside, the expander connects with with the compressor and transmitspower. Or the expander connects with with the compressor and the pumpand transmits power.

5. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser and an evaporator.An evaporator has a vapor channel which passes through a intermediatevapor inlet channel and connects with an expander after that a condenserhas a liquid refrigerant pipe which passes through a pump and connectswith the evaporator, a compressor has a vapor channel which passesthrough a high-temperature heat exchanger and connects with theexpander, the evaporator has a low-pressure vapor channel connected withthe compressor and the condenser respectively after that the expanderhas a low-pressure vapor channel connected with the evaporator. Thehigh-temperature heat exchanger has the heat source medium channelconnected with the outside, the condenser has the cooling medium channelconnected with the outside, or the evaporator has the heat source mediumchannel connected with the outside, the expander connects with with thecompressor and transmits power. Or the expander connects with with thecompressor and the pump and transmits power.

6. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator anda high-temperature regenerator. An evaporator has a vapor channel whichpasses through a intermediate vapor inlet channel and connects with anexpander after that a condenser has a liquid refrigerant pipe whichpasses through a pump and connects with the evaporator, a compressor hasa vapor channel which passes through a high-temperature regenerator anda high-temperature heat exchanger and connects with the expander, theexpander has a low-pressure vapor channel connected with thehigh-temperature regenerator, the evaporator has a low-pressure vaporchannel connected with the compressor and the condenser respectivelyafter that the high-temperature regenerator has a low-pressure vaporchannel connected with the evaporator. The high-temperature heatexchanger has the heat source medium channel connected with the outside,the condenser has the cooling medium channel connected with the outside,or the evaporator has the heat source medium channel connected with theoutside, the expander connects with with the compressor and transmitspower. Or the expander connects with with the compressor and the pumpand transmits power.

7. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator andthe second expander. An evaporator has a vapor channel connected withthe second expander after that a condenser has a liquid refrigerant pipewhich passes through a pump and connects with the evaporator, the secondexpander has a vapor channel connected with the evaporator, a compressorhas a vapor channel which passes through a high-temperature heatexchanger and connects with the expander, the expander has alow-pressure vapor channel connected with the evaporator, the evaporatorhas a low-pressure vapor channel connected with the compressor and thecondenser respectively. The high-temperature heat exchanger has the heatsource medium channel connected with the outside, the condenser has thecooling medium channel connected with the outside, or the evaporator hasthe heat source medium channel connected with the outside, the expanderand the second expander connect with the compressor and transmits power.Or the expander and the second expander connect with the compressor andthe pump and transmits power.

8. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator anda heating unit. an evaporator has a vapor channel connects with ahigh-temperature heat exchanger after that a condenser has a liquidrefrigerant pipe which passes through a pump and connects with theevaporator, a compressor has a vapor channel connects with thehigh-temperature heat exchanger, the high-temperature heat exchanger hasa vapor channel connected with the expander, the evaporator has alow-pressure vapor channel connected with a heating unit after that theexpander has a low-pressure vapor channel connected with the evaporator,the heating unit has a low-pressure vapor channel connected with thecompressor and the condenser respectively. The high-temperature heatexchanger has the heat source medium channel connected with the outside,the condenser has the cooling medium channel connected with the outside,or the evaporator has the heat source medium channel connected with theoutside, the heating unit has the heated medium channel connected withthe outside, the expander connects with with the compressor andtransmits power. Or the expander connects with with the compressor andthe pump and transmits power.

9. A combined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator, thesecond high-temperature heat exchanger and the second compressor. Anevaporator has a vapor channel connects with a high-temperature heatexchanger after that a condenser has a liquid refrigerant pipe whichpasses through a pump and connects with the evaporator, a compressor hasa vapor channel connects with the high-temperature heat exchanger, thehigh-temperature heat exchanger has a vapor channel connected with thesecond compressor, the second compressor has a vapor channel whichpasses through the second high-temperature heat exchanger and connectswith the expander, the evaporator has a low-pressure vapor channelconnected with the compressor and the condenser respectively after thatthe expander has a low-pressure vapor channel connected with theevaporator. The high-temperature heat exchanger and the secondhigh-temperature heat exchanger have the heat source medium channelsconnected with the outside, the condenser has the cooling medium channelconnected with the outside, or the evaporator has the heat source mediumchannel connected with the outside, the expander connects with with thecompressor and the second compressor and transmits power. Or theexpander connects with with the compressor, the pump and the secondcompressor and transmits power.

10. A combined cycle power device comprising a compressor, an expander,a pump, a high-temperature heat exchanger, a condenser, an evaporator,the second high-temperature heat exchanger and the second expander. Anevaporator has a vapor channel connects with a high-temperature heatexchanger after that a condenser has a liquid refrigerant pipe whichpasses through a pump and connects with the evaporator, a compressor hasa vapor channel connects with the high-temperature heat exchanger, thehigh-temperature heat exchanger has a vapor channel connected with thesecond expander, the second expander has a vapor channel which passesthrough the second high-temperature heat exchanger and connects with theexpander, the evaporator has a low-pressure vapor channel connected withthe compressor and the condenser respectively after that the expanderhas a low-pressure vapor channel connected with the evaporator. Thehigh-temperature heat exchanger and the second high-temperature heatexchanger have the heat source medium channels connected with theoutside, the condenser has the cooling medium channel connected with theoutside, or the evaporator has the heat source medium channel connectedwith the outside, the expander and the second expander connect with thecompressor and transmits power. Or the expander and the second expanderconnect with the compressor and the pump and transmits power.

11. A combined cycle power device comprising a compressor, an expander,a pump, a high-temperature heat exchanger, a condenser, an evaporator, ahigh-temperature regenerator, the second high-temperature heat exchangerand the second compressor. An evaporator has a vapor channel whichpasses through a high-temperature regenerator and connects with ahigh-temperature heat exchanger after that a condenser has a liquidrefrigerant pipe which passes through a pump and connects with theevaporator, a compressor has a vapor channel which passes through ahigh-temperature regenerator and connects with a high-temperature heatexchanger, the high-temperature heat exchanger has a vapor channelconnected with the second compressor, the second compressor has a vaporchannel which passes through the second high-temperature heat exchangerand connects with the expander, the evaporator has a low-pressure vaporchannel connected with the compressor and the condenser respectivelyafter that the expander has a low-pressure vapor channel which passesthrough a high-temperature regenerator and connects with the evaporator.The high-temperature heat exchanger and the second high-temperature heatexchanger have the heat source medium channels connected with theoutside, the condenser has the cooling medium channel connected with theoutside, or the evaporator has the heat source medium channel connectedwith the outside, the expander connects with with the compressor and thesecond compressor and transmits power. Or the expander connects withwith the compressor, the second compressor and the pump and transmitspower.

12. A combined cycle power device comprising a compressor, an expander,a pump, a high-temperature heat exchanger, a condenser, an evaporator, ahigh-temperature regenerator, the second high-temperature heat exchangerand the second expander. An evaporator has a vapor channel which passesthrough a high-temperature regenerator and connects with ahigh-temperature heat exchanger after that a condenser has a liquidrefrigerant pipe which passes through a pump and connects with theevaporator, a compressor has a vapor channel which passes through ahigh-temperature regenerator and connects with a high-temperature heatexchanger, the high-temperature heat exchanger has a vapor channelconnected with the second expander, the second expander has a vaporchannel which passes through the second high-temperature heat exchangerand connects with the expander, the evaporator has a low-pressure vaporchannel connected with the compressor and the condenser respectivelyafter that the expander has a low-pressure vapor channel which passesthrough a high-temperature regenerator and connects with the evaporator.The high-temperature heat exchanger and the second high-temperature heatexchanger have the heat source medium channels connected with theoutside, the condenser has the cooling medium channel connected with theoutside, or the evaporator has the heat source medium channel connectedwith the outside, the expander and the second expander connect with thecompressor and transmits power. Or the expander and the second expanderconnect with the compressor and the pump and transmits power.

13. The device according to any one of claim 1-12, wherein adding thelow temperature regenerator and the second pump, adjusting that thecondenser has a liquid refrigerant pipe which passes through a pump andconnects with the evaporator to that the condenser has a liquidrefrigerant pipe which passes through a pump and connects with a lowtemperature regenerator, the compressor adds the vapor extractionchannel connected with the low temperature regenerator, the lowtemperature regenerator has a liquid refrigerant pipe which passesthrough the second pump and connects with the evaporator, a combinedcycle power device is formed.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a type 1 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 2 is a type 2 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 3 is a type 3 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 4 is a type 4 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 5 is a type 5 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 6 is a type 6 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 7 is a type 7 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 8 is a type 8 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 9 is a type 9 example general flow chart of a combined cycle powerdevice provided in the present invention.

FIG. 10 is a type 10 example general flow chart of a combined cyclepower device provided in the present invention.

FIG. 11 is a type 11 example general flow chart of a combined cyclepower device provided in the present invention.

FIG. 12 is a type 12 example general flow chart of a combined cyclepower device provided in the present invention.

FIG. 13 is a type 13 example general flow chart of a combined cyclepower device provided in the present invention.

FIG. 14 is a type 14 example general flow chart of a combined cyclepower device provided in the present invention.

FIG. 15 is a type 15 example general flow chart of a combined cyclepower device provided in the present invention.

In the figures, 1—compressor, 2—expander, 3—circulating pump, 4—hightemperature heat exchanger, 5—condenser, 6—evaporator (waste heatboiler), 7—heating unit, 8—high temperature regenerator, 9—the secondhigh—temperature heat exchanger, 10—the second expander, 11—the secondcompressor, 12—low temperature regenerator, 13—the second pump.

DETAILED DESCRIPTION

The first thing to note is that, when describing the cycle's structuresand processes, the processes will not be repeatedly described if notnecessary, and the obvious processes will not be described. The detaileddescription of the present invention is as follows:

The combined cycle power device in FIG. 1 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser and an evaporator. An evaporator 6 has a vapor channelconnected with a high-temperature heat exchanger 4 after that acondenser 5 has a liquid refrigerant pipe which passes through a pump 3and connects with the evaporator 6, a compressor 1 has a vapor channelconnected with the high-temperature heat exchanger 4, thehigh-temperature heat exchanger 4 has a vapor channel connected with anexpander 2, the evaporator 6 has a low-pressure vapor channel connectedwith the compressor 1 and the condenser 5 respectively after that theexpander 2 has a low-pressure vapor channel connected with theevaporator 6. The high-temperature heat exchanger 4 has the heat sourcemedium channel connected with the outside, the condenser 5 has thecooling medium channel connected with the outside. The expander 2connects with with the compressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters into the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the expander 2 to depressurize and output work. The low-pressurevapor discharged from the expander 2 flows through the evaporator 6 torelease heat and cool down, and then is divided into two currents. Thefirst current enters the compressor 1 for pressure rise and temperaturerise. The second current enters the condenser 5 to release heat andcondense. The heat source medium supplies the driving heat load throughthe high-temperature heat exchanger 4. The cooling medium takes away thelow-temperature heat load through the condenser 5. The expander 2supplies power to the compressor 1 and the outside. Or the expander 2supplies power to the compressor 1, the pump 3 and the outside. Thecombined cycle power device is formed.

The combined cycle power device in FIG. 2 works as follows:

Based on combined cycle power device in FIG. 1, the evaporator 6 addsthe heat source medium channel connected with with the outside. Thecondensate entering the evaporator 6 obtains the heat load provided bythe low-pressure vapor and the heat source medium at the same time,heats up, vaporizes and superheats, and then enters the high-temperatureheat exchanger 4. The combined cycle power device is formed.

The combined cycle power device in FIG. 3 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and a heating unit. an evaporator 6 has a vaporchannel connected with a high-temperature heat exchanger 4 after that acondenser 5 has a liquid refrigerant pipe which passes through a pump 3and connects with the evaporator 6, a compressor 1 has a vapor channelconnected with the high-temperature heat exchanger 4, thehigh-temperature heat exchanger 4 has a vapor channel connected with anexpander 2, a heating unit 7 has a low-pressure vapor channel connectedwith the compressor 1 and the condenser 5 respectively after that theexpander 2 has a low-pressure vapor channel connected with the heatingunit 7. The high-temperature heat exchanger 4 has the heat source mediumchannel connected with the outside, the condenser 5 has the coolingmedium channel connected with the outside, the evaporator 6 has the heatsource medium channel connected with the outside, the heating unit 7 hasthe heated medium channel connected with the outside, the expander 2connects with with the compressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters into the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the expander 2 to depressurize and output work. The low-pressurevapor discharged from the expander 2 flows through the heating unit 7 torelease heat and cool down, and then is divided into two currents. Thefirst current enters the compressor 1 for pressure rise and temperaturerise. The second current enters the condenser 5 to release heat andcondense. The heat source medium supplies the driving heat load throughthe high-temperature heat exchanger 4 and the evaporator 6. The coolingmedium takes away the low-temperature heat load through the condenser 5.The heated medium takes away the medium temperature heat load throughthe heating unit 7. The expander 2 supplies power to the compressor 1and the outside. Or the expander 2 supplies power to the compressor 1,the pump 3 and the outside. The combined cycle power device is formed.

The combined cycle power device in FIG. 4 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and a high-temperature regenerator. Anevaporator 6 has a vapor channel which passes through a high-temperatureregenerator 8 and connects with a high-temperature heat exchanger 4after that a condenser 5 has a liquid refrigerant pipe which passesthrough a pump 3 and connects with the evaporator 6, a compressor 1 hasa vapor channel which passes through the high-temperature regenerator 8and connects with the high-temperature heat exchanger 4, thehigh-temperature heat exchanger 4 has a vapor channel connected with anexpander 2, the expander 2 has a low-pressure vapor channel connectedwith the high-temperature regenerator 8, the evaporator 6 has alow-pressure vapor channel connected with the compressor 1 and thecondenser 5 respectively after that the high-temperature regenerator 8has a low-pressure vapor channel connected with the evaporator 6. Thehigh-temperature heat exchanger 4 has the heat source medium channelconnected with the outside, the condenser 5 has the cooling mediumchannel connected with the outside, the expander 2 connects with withthe compressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters into the evaporator 6 in which it absorbs heat,vaporizes and superheats. The superheated vapor flows through thehigh-temperature regenerator 8 for heat absorption, and then enters thehigh-temperature heat exchanger 4 for heat absorption. The vapordischarged from compressor 1 flows through the high-temperatureregenerator 8 for heat absorption, and then enters the high-temperatureheat exchanger 4 for heat absorption. The vapor discharged from thehigh-temperature heat exchanger 4 flows through the expander 2 todepressurize and output work. The low-pressure vapor discharged from theexpander 2 flows through the high-temperature regenerator 8 and theevaporator 6 to release heat and cool down, and then is divided into twocurrents. The first current enters the compressor 1 for pressure riseand temperature rise. The second current enters the condenser 5 torelease heat and condense. The heat source medium supplies the drivingheat load through the high-temperature heat exchanger 4. The coolingmedium takes away the low-temperature heat load through the condenser 5.The expander 2 supplies power to the compressor 1 and the outside. Orthe expander 2 supplies power to the compressor 1, the pump 3 and theoutside. The combined cycle power device is formed.

The combined cycle power device in FIG. 5 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and the second high-temperature heat exchanger.An evaporator 6 has a vapor channel connects with the secondhigh-temperature heat exchanger 9 after that a condenser 5 has a liquidrefrigerant pipe which passes through a pump 3 and connects with theevaporator 6, the second high-temperature heat exchanger 9 has a vaporchannel connects with an expander 2, a compressor 1 has a vapor channelconnects with the high-temperature heat exchanger 4, thehigh-temperature heat exchanger 4 has a vapor channel which passesthrough a intermediate vapor inlet channel and connects with theexpander 2, the evaporator 6 has a low-pressure vapor channel connectedwith the compressor 1 and the condenser 5 respectively after that theexpander 2 has a low-pressure vapor channel connected with theevaporator 6. The high-temperature heat exchanger 4 and thehigh-temperature heat exchanger 9 have the heat source medium channelsconnected with the outside, the condenser 5 has the cooling mediumchannel connected with the outside, the expander 2 connects with withthe compressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3, the evaporator 6 and the second high-temperature heatexchanger 9 and absorbs heat, vaporizes and superheats, and then entersthe expander 2 to depressurize and output work. The vapor dischargedfrom compressor 1 flows through the high-temperature heat exchanger 4for heat absorption, and then enters the expander 2 to depressurize andoutput work. The low-pressure vapor discharged from the expander 2 flowsthrough the evaporator 6 to release heat and cool down, and then isdivided into two currents. The first current enters the compressor 1 forpressure rise and temperature rise. The second current enters thecondenser 5 to release heat and condense. The heat source mediumsupplies the driving heat load through the high-temperature heatexchanger 4 and the second high-temperature heat exchanger 9. Thecooling medium takes away the low-temperature heat load through thecondenser 5. The expander 2 supplies power to the compressor 1 and theoutside. Or the expander 2 supplies power to the compressor 1, the pump3 and the outside. The combined cycle power device is formed.

The combined cycle power device in FIG. 6 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser and an evaporator. An evaporator 6 has a vapor channel whichpasses through a intermediate vapor inlet channel and connects with anexpander 2 after that a condenser 5 has a liquid refrigerant pipe whichpasses through a pump 3 and connects with the evaporator 6, a compressor1 has a vapor channel which passes through a high-temperature heatexchanger 4 and connects with the expander 2, the evaporator 6 has alow-pressure vapor channel connected with the compressor 1 and thecondenser 5 respectively after that the expander 2 has a low-pressurevapor channel connected with the evaporator 6. The high-temperature heatexchanger 4 has the heat source medium channel connected with theoutside, the condenser 5 has the cooling medium channel connected withthe outside, the expander 2 connects with with the compressor 1 andtransmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the expander 2 to depressurizeand output work. The vapor discharged from compressor 1 flows throughthe high-temperature heat exchanger 4 for heat absorption, and thenenters the expander 2 to depressurize and output work. The low-pressurevapor discharged from the expander 2 flows through the evaporator 6 torelease heat and cool down, and then is divided into two currents. Thefirst current enters the compressor 1 for pressure rise and temperaturerise. The second current enters the condenser 5 to release heat andcondense. The heat source medium supplies the driving heat load throughthe high-temperature heat exchanger 4. The cooling medium takes away thelow-temperature heat load through the condenser 5. The expander 2supplies power to the compressor 1 and the outside. Or the expander 2supplies power to the compressor 1, the pump 3 and the outside. Thecombined cycle power device is formed.

The combined cycle power device in FIG. 7 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and a high-temperature regenerator. Anevaporator 6 has a vapor channel which passes through a intermediatevapor inlet channel and connects with an expander 2 after that acondenser 5 has a liquid refrigerant pipe which passes through a pump 3and connects with the evaporator 6, a compressor 1 has a vapor channelwhich passes through a high-temperature regenerator 8 and ahigh-temperature heat exchanger 4 and connects with the expander 2, theexpander 2 has a low-pressure vapor channel connected with thehigh-temperature regenerator 8, the evaporator 6 has a low-pressurevapor channel connected with the compressor 1 and the condenser 5respectively after that the high-temperature regenerator 8 has alow-pressure vapor channel connected with the evaporator 6. Thehigh-temperature heat exchanger 4 has the heat source medium channelconnected with the outside, the condenser 5 has the cooling mediumchannel connected with the outside, the expander 2 connects with withthe compressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the expander 2 to depressurizeand output work. The vapor discharged from compressor 1 flows throughthe high-temperature regenerator 8 and the high-temperature heatexchanger 4 for heat absorption, and then enters the expander 2 todepressurize and output work. The low-pressure vapor discharged from theexpander 2 flows through the high-temperature regenerator 8 and theevaporator 6 to release heat and cool down, and then is divided into twocurrents. The first current enters the compressor 1 for pressure riseand temperature rise. The second current enters the condenser 5 torelease heat and condense. The heat source medium supplies the drivingheat load through the high-temperature heat exchanger 4. The coolingmedium takes away the low-temperature heat load through the condenser 5.The expander 2 supplies power to the compressor 1 and the outside. Orthe expander 2 supplies power to the compressor 1, the pump 3 and theoutside. The combined cycle power device is formed.

The combined cycle power device in FIG. 8 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and the second expander. An evaporator 6 has avapor channel connected with the second expander 10 after that acondenser 5 has a liquid refrigerant pipe which passes through a pump 3and connects with the evaporator 6, the second expander 10 has a vaporchannel connected with the evaporator 6, a compressor 1 has a vaporchannel which passes through a high-temperature heat exchanger 4 andconnects with the expander 2, the expander 2 has a low-pressure vaporchannel connected with the evaporator 6, the evaporator 6 has alow-pressure vapor channel connected with the compressor 1 and thecondenser 5 respectively. The high-temperature heat exchanger 4 has theheat source medium channel connected with the outside, the condenser 5has the cooling medium channel connected with the outside, theevaporator 6 has the heat source medium channel connected with theoutside, the expander 2 and the second expander 10 connect with thecompressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the second expander 10 todepressurize and output work. The low-pressure vapor discharged from thesecond expander 10 enters the evaporator 6 to release heat and cooldown. The vapor discharged from the compressor 1 flows through thehigh-temperature heat exchanger 4 for heat absorption, and then entersthe expander 2 to depressurize and output work. The low-pressure vapordischarged from the expander 2 enters the evaporator 6 to release heatand cool down, and then is divided into two currents. The first currententers the compressor 1 for pressure rise and temperature rise. Thesecond current enters the condenser 5 to release heat and condense. Theheat source medium supplies the driving heat load through thehigh-temperature heat exchanger 4 and the evaporator 6. The coolingmedium takes away the low-temperature heat load through the condenser 5.The expander 2 and the second expander 10 supplies power to thecompressor 1 and the outside. Or the expander 2 and the second expander10 supplies power to the compressor 1, the pump 3 and the outside. Thecombined cycle power device is formed.

The combined cycle power device in FIG. 9 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and a heating unit. an evaporator 6 has a vaporchannel connects with a high-temperature heat exchanger 4 after that acondenser 5 has a liquid refrigerant pipe which passes through a pump 3and connects with the evaporator 6, a compressor 1 has a vapor channelconnects with the high-temperature heat exchanger 4, thehigh-temperature heat exchanger 4 has a vapor channel connected with theexpander 2, the evaporator 6 has a low-pressure vapor channel connectedwith a heating unit 7 after that the expander 2 has a low-pressure vaporchannel connected with the evaporator 6, the heating unit 7 has alow-pressure vapor channel connected with the compressor 1 and thecondenser 5 respectively. The high-temperature heat exchanger 4 has theheat source medium channel connected with the outside, the condenser 5has the cooling medium channel connected with the outside, the heatingunit 7 has the heated medium channel connected with the outside, theexpander 2 connects with with the compressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the expander 2 to depressurize and output work. The low-pressurevapor discharged from the expander 2 flows through the evaporator 6 andheating unit 7 to release heat and cool down, and then is divided intotwo currents. The first current enters the compressor 1 for pressurerise and temperature rise. The second current enters the condenser 5 torelease heat and condense. The heat source medium supplies the drivingheat load through the high-temperature heat exchanger 4. The coolingmedium takes away the low-temperature heat load through the condenser 5.The heated medium takes away the medium temperature heat load throughthe heating unit 7. The expander 2 supplies power to the compressor 1and the outside. Or the expander 2 supplies power to the compressor 1,the pump 3 and the outside. The combined cycle power device is formed.

The combined cycle power device in FIG. 10 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator, the second high-temperature heat exchanger andthe second compressor. An evaporator 6 has a vapor channel connects witha high-temperature heat exchanger 4 after that a condenser 5 has aliquid refrigerant pipe which passes through a pump 3 and connects withthe evaporator 6, a compressor 1 has a vapor channel connects with thehigh-temperature heat exchanger 4, the high-temperature heat exchanger 4has a vapor channel connected with the second compressor 11, the secondcompressor 11 has a vapor channel which passes through the secondhigh-temperature heat exchanger 9 and connects with the expander 2, theevaporator 6 has a low-pressure vapor channel connected with thecompressor 1 and the condenser 5 respectively after that the expander 2has a low-pressure vapor channel connected with the evaporator 6. Thehigh-temperature heat exchanger 4 and the second high-temperature heatexchanger 9 have the heat source medium channels connected with theoutside, the condenser 5 has the cooling medium channel connected withthe outside, the expander 2 connects with with the compressor 1 and thesecond compressor 11 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the second compressor 11 to pressurize, the secondhigh-temperature heat exchanger 9 for heat absorption and the expander 2to depressurize and output work. The low-pressure vapor discharged fromthe expander 2 flows through the evaporator 6 to release heat and cooldown, and then is divided into two currents. The first current entersthe compressor 1 for pressure rise and temperature rise. The secondcurrent enters the condenser 5 to release heat and condense. The heatsource medium supplies the driving heat load through thehigh-temperature heat exchanger 4 and the second high-temperature heatexchanger 9. The cooling medium takes away the low-temperature heat loadthrough the condenser 5. The expander 2 supplies power to the compressor1, the second compressor 11 and the outside. Or he expander 2 suppliespower to the compressor 1, the pump 3, the second compressor 11 and theoutside. The combined cycle power device is formed.

The combined cycle power device in FIG. 11 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator, the second high-temperature heat exchanger andthe second expander. An evaporator 6 has a vapor channel connects with ahigh-temperature heat exchanger 4 after that a condenser 5 has a liquidrefrigerant pipe which passes through a pump 3 and connects with theevaporator 6, a compressor 1 has a vapor channel connects with thehigh-temperature heat exchanger 4, the high-temperature heat exchanger 4has a vapor channel connected with the second expander 10, the secondexpander 10 has a vapor channel which passes through the secondhigh-temperature heat exchanger 9 and connects with the expander 2, theevaporator 6 has a low-pressure vapor channel connected with thecompressor 1 and the condenser 5 respectively after that the expander 2has a low-pressure vapor channel connected with the evaporator 6. Thehigh-temperature heat exchanger 4 and the second high-temperature heatexchanger 9 have the heat source medium channels connected with theoutside, the condenser 5 has the cooling medium channel connected withthe outside, the expander 2 and the second expander 10 connect with thecompressor 1 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the second expander 10 to depressurize and output work, thesecond high-temperature heat exchanger 9 for heat absorption and theexpander 2 to depressurize and output work. The low-pressure vapordischarged from the expander 2 flows through the evaporator 6 to releaseheat and cool down, and then is divided into two currents. The firstcurrent enters the compressor 1 for pressure rise and temperature rise.The second current enters the condenser 5 to release heat and condense.The heat source medium supplies the driving heat load through thehigh-temperature heat exchanger 4 and the second high-temperature heatexchanger 9. The cooling medium takes away the low-temperature heat loadthrough the condenser 5. The expander 2 and the second expander 10supplies power to the compressor 1 and the outside. Or the expander 2and the second expander 10 supplies power to the compressor 1, the pump3 and the outside. The combined cycle power device is formed.

The combined cycle power device in FIG. 12 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator, a high-temperature regenerator, the secondhigh-temperature heat exchanger and the second compressor. An evaporator6 has a vapor channel which passes through a high-temperatureregenerator 8 and connects with a high-temperature heat exchanger 4after that a condenser 5 has a liquid refrigerant pipe which passesthrough a pump 3 and connects with the evaporator 6, a compressor 1 hasa vapor channel which passes through a high-temperature regenerator 8and connects with a high-temperature heat exchanger 4, thehigh-temperature heat exchanger 4 has a vapor channel connected with thesecond compressor 11, the second compressor 11 has a vapor channel whichpasses through the second high-temperature heat exchanger 9 and connectswith the expander 2, the evaporator 6 has a low-pressure vapor channelconnected with the compressor 1 and the condenser 5 respectively afterthat the expander 2 has a low-pressure vapor channel which passesthrough a high-temperature regenerator 8 and connects with theevaporator 6. The high-temperature heat exchanger 4 and the secondhigh-temperature heat exchanger 9 have the heat source medium channelsconnected with the outside, the condenser 5 has the cooling mediumchannel connected with the outside, the expander 2 connects with withthe compressor 1 and the second compressor 11 and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats. The superheated vapor flows through thehigh-temperature regenerator 8 for heat absorption, and then enters thehigh-temperature heat exchanger 4 for heat absorption. The vapordischarged from compressor 1 flows through the high-temperatureregenerator 8 for heat absorption, and then enters the high-temperatureheat exchanger 4 for heat absorption. The vapor discharged from thehigh-temperature heat exchanger 4 flows through the second compressor 11to pressurize, the second high-temperature heat exchanger 9 for heatabsorption and the expander 2 to depressurize and output work. Thelow-pressure vapor discharged from the expander 2 flows through thehigh-temperature regenerator 8 and the evaporator 6 to release heat andcool down, and then is divided into two currents. The first currententers the compressor 1 for pressure rise and temperature rise. Thesecond current enters the condenser 5 to release heat and condense. Theheat source medium supplies the driving heat load through thehigh-temperature heat exchanger 4 and the second high-temperature heatexchanger 9. The cooling medium takes away the low-temperature heat loadthrough the condenser 5. The expander 2 supplies power to the compressor1, the second compressor 11 and the outside. Or the expander 2 suppliespower to the compressor 1, the pump 3, the second compressor 11 and theoutside. The combined cycle power device is formed.

The combined cycle power device in FIG. 13 works as follows:

(1) Device structure. The combined cycle power device comprises acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator, a high-temperature regenerator, the secondhigh-temperature heat exchanger and the second expander. An evaporator 6has a vapor channel which passes through a high-temperature regenerator8 and connects with a high-temperature heat exchanger 4 after that acondenser 5 has a liquid refrigerant pipe which passes through a pump 3and connects with the evaporator 6, a compressor 1 has a vapor channelwhich passes through a high-temperature regenerator 8 and connects witha high-temperature heat exchanger 4, the high-temperature heat exchanger4 has a vapor channel connected with the second expander 10, the secondexpander 10 has a vapor channel which passes through the secondhigh-temperature heat exchanger 9 and connects with the expander 2, theevaporator 6 has a low-pressure vapor channel connected with thecompressor 1 and the condenser 5 respectively after that the expander 2has a low-pressure vapor channel which passes through a high-temperatureregenerator 8 and connects with the evaporator 6. The high-temperatureheat exchanger 4 and the second high-temperature heat exchanger 9 havethe heat source medium channels connected with the outside, thecondenser 5 has the cooling medium channel connected with the outside,the expander 2 and the second expander 10 connect with the compressor 1and transmits power.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats. The superheated vapor flows through thehigh-temperature regenerator 8 for heat absorption, and then enters thehigh-temperature heat exchanger 4 for heat absorption. The vapordischarged from compressor 1 flows through the high-temperatureregenerator 8 for heat absorption, and then enters the high-temperatureheat exchanger 4 for heat absorption. The vapor discharged from thehigh-temperature heat exchanger 4 flows through the second expander 10to depressurize and output work, the second high-temperature heatexchanger 9 for heat absorption and the expander 2 to depressurize andoutput work. The low-pressure vapor discharged from the expander 2 flowsthrough the high-temperature regenerator 8 and the evaporator 6 torelease heat and cool down, and then is divided into two currents. Thefirst current enters the compressor 1 for pressure rise and temperaturerise. The second current enters the condenser 5 to release heat andcondense. The heat source medium supplies the driving heat load throughthe high-temperature heat exchanger 4 and the second high-temperatureheat exchanger 9. The cooling medium takes away the low-temperature heatload through the condenser 5. The expander 2 and the second expander 10supplies power to the compressor 1 and the outside. Or the expander 2and the second expander 10 supplies power to the compressor 1, the pump3 and the outside. The combined cycle power device is formed.

The combined cycle power device in FIG. 14 works as follows:

(1) Structurally, based on combined cycle power device in FIG. 1, a lowtemperature regenerator and the second pump is added. That a condenser 5has a liquid refrigerant pipe which passes through a pump 3 and connectswith the evaporator 6 is adjusted for that a condenser 5 has a liquidrefrigerant pipe which passes through a pump 3 and connects with a lowtemperature regenerator 12. The low temperature regenerator 12 has aliquid refrigerant pipe which passes through the second pump 13 andconnects with the evaporator 6. The compressor 1 adds a vapor extractionchannel connected with the low temperature regenerator 12.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the low temperature regenerator 12 in which itmixes with the vapor extraction from the compressor 1 for heatabsorption. The vapor extraction releases and is condensed. Thecondensate of the low temperature regenerator 12 flows through thesecond pump 13 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the expander 2 to depressurize and output work. The low-pressurevapor discharged from the expander 2 flows through the evaporator 6 torelease heat and cool down, and then is divided into two currents. Thefirst current enters the compressor 1 for pressure rise and temperaturerise. The second current enters the condenser 5 to release heat andcondense. The low-pressure vapor entering the compressor 1 is compressedto the certain extent and then divided into two currents. The firstcurrent enters the low temperature regenerator 12 by the intermediateextraction channel. The second current continues to boost pressure andtemperature. The heat source medium supplies the driving heat loadthrough the high-temperature heat exchanger 4. The cooling medium takesaway the low-temperature heat load through the condenser 5. The expander2 supplies power to the compressor 1 and the outside. Or the expander 2supplies power to the compressor 1, the pump 3, the second pump 13 andthe outside. The combined cycle power device is formed.

The combined cycle power device in FIG. 15 works as follows:

(1) Structurally, based on combined cycle power device in FIG. 3, a lowtemperature regenerator and the second pump is added. That a condenser 5has a liquid refrigerant pipe which passes through a pump 3 and connectswith the evaporator 6 is adjusted for that a condenser 5 has a liquidrefrigerant pipe which passes through a pump 3 and connects with a lowtemperature regenerator 12. The low temperature regenerator 12 has aliquid refrigerant pipe which passes through the second pump 13 andconnects with the evaporator 6. The compressor 1 adds a vapor extractionchannel connected with the low temperature regenerator 12.

(2) Working processes. The condensate of the condenser 5 flows throughthe pump 3 and enters the low temperature regenerator 12 in which itmixes with the vapor extraction from the compressor 1 for heatabsorption. The vapor extraction releases and is condensed. Thecondensate of the low temperature regenerator 12 flows through thesecond pump 13 and enters the evaporator 6 in which it absorbs heat,vaporizes and superheats, and then enters the high-temperature heatexchanger 4 for heat absorption. The vapor discharged from compressor 1enters the high-temperature heat exchanger 4 for heat absorption. Thevapor discharged from the high-temperature heat exchanger 4 flowsthrough the expander 2 to depressurize and output work. The low-pressurevapor discharged from the expander 2 flows through the heating unit 7 torelease heat and cool down, and then is divided into two currents. Thefirst current enters the compressor 1 for pressure rise and temperaturerise. The second current enters the condenser 5 to release heat andcondense. The low-pressure vapor entering the compressor 1 is compressedto the certain extent and then divided into two currents. The firstcurrent enters the low temperature regenerator 12 by the intermediateextraction channel. The second current continues to boost pressure andtemperature. The heat source medium supplies the driving heat loadthrough the high-temperature heat exchanger 4 and the evaporator 6. Thecooling medium takes away the low-temperature heat load through thecondenser 5. The heated medium takes away the medium temperature heatload through the heating unit 7. The expander 2 supplies power to thecompressor 1 and the outside. Or the expander 2 supplies power to thecompressor 1, the pump 3, the second pump 13 and the outside. Thecombined cycle power device is formed.

The technical effects of the present invention invention: the combinedcycle power device proposed by the present invention has the followingeffects and advantages:

(1) The circulating working medium absorbs heat at high-temperature heatunder low pressure. The temperature difference loss between thecirculating working medium and the high-temperature heat source issmall, which is conducive to improving the thermal efficiency of thesystem and the safety of the device.

(2) The circulating working medium mainly relies on the condensationphase transformation process to realize low temperature heat release.The temperature difference loss between the circulating working mediumand the environment is controllable, which is conducive to improving thethermal efficiency.

(3) The present invention adopts the low-pressure and high-temperatureoperation mode to work in the high-temperature region. Therefore, thecontradiction among thermal efficiency, the working medium's parametersand the material's temperature resistance and pressure resistanceabilities, which is common in traditional vapor power devices, can beresolved. The temperature difference loss between the heat source andthe circulating medium can be greatly reduced, and the thermalefficiency can be greatly improved.

(4) In the present invention, the equipment is shared to increase theheat absorption process of the lower cycle (Rankine cycle) and improvethe thermal efficiency.

(5) The present invention only uses a single working medium, whichreduce the operation cost and improve the flexibility of thermal device.

(6) When the high-temperature expander is shared, the number of coreequipment is reduced, which is conducive to reducing system investmentand improving thermal efficiency.

(7) The present invention effectively deals with the high-temperatureheat source and the variable temperature heat source, the high-qualityfuel and the non high-quality fuel, and has a wide range of application.

(8) On the premise of realizing high thermal efficiency, the device inthe present invention can be selected to operate at low pressure, so asto greatly improve the operation safety of the device.

(9) The present invention can realize the heat recovery of enterprisedevice simply, actively, safely and efficiently.

(10) The thermal efficiency improves effectively when the presentinvention is applied to the lower end of the gas-steam combined cycle.

(11) When the present invention is applied to the coal-fired thermalsystem, it can maintain the original advantages of the traditional steampower cycle in which water vapor is used as working medium and has awide range of working parameters. According to the actual situation, thepresent invention can work in subcritical, critical, supercritical orultra supercritical state, etc.

What is claimed is:
 1. A combined cycle power device comprising acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser and an evaporator; wherein an evaporator (6) has a vaporchannel connected with a high-temperature heat exchanger (4) after thata condenser (5) has a liquid refrigerant pipe which passes through apump (3) and connects with the evaporator (6), a compressor (1) has avapor channel connected with the high-temperature heat exchanger (4),the high-temperature heat exchanger (4) has a vapor channel connectedwith an expander (2), the evaporator (6) has a low-pressure vaporchannel connected with the compressor (1) and the condenser (5)respectively after that the expander (2) has a low-pressure vaporchannel connected with the evaporator (6), wherein the high-temperatureheat exchanger (4) has the heat source medium channel connected with theoutside, the condenser (5) has the cooling medium channel connected withthe outside, or the evaporator (6) has the heat source medium channelconnected with the outside, the expander (2) connects with with thecompressor (1) and transmits power, wherein or the expander (2) connectswith with the compressor (1) and the pump (3) and transmits power.
 2. Acombined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator anda heating unit; wherein an evaporator (6) has a vapor channel connectedwith a high-temperature heat exchanger (4) after that a condenser (5)has a liquid refrigerant pipe which passes through a pump (3) andconnects with the evaporator (6), a compressor (1) has a vapor channelconnected with the high-temperature heat exchanger (4), thehigh-temperature heat exchanger (4) has a vapor channel connected withan expander (2), a heating unit (7) has a low-pressure vapor channelconnected with the compressor (1) and the condenser (5) respectivelyafter that the expander (2) has a low-pressure vapor channel connectedwith the heating unit (7), wherein the high-temperature heat exchanger(4) has the heat source medium channel connected with the outside, thecondenser (5) has the cooling medium channel connected with the outside,the evaporator (6) has the heat source medium channel connected with theoutside, the heating unit (7) has the heated medium channel connectedwith the outside, the expander (2) connects with with the compressor (1)and transmits power, wherein or the expander (2) connects with with thecompressor (1) and the pump (3) and transmits power.
 3. A combined cyclepower device comprising a compressor, an expander, a pump, ahigh-temperature heat exchanger, a condenser, an evaporator and ahigh-temperature regenerator; wherein an evaporator (6) has a vaporchannel which passes through a high-temperature regenerator (8) andconnects with a high-temperature heat exchanger (4) after that acondenser (5) has a liquid refrigerant pipe which passes through a pump(3) and connects with the evaporator (6), a compressor (1) has a vaporchannel which passes through the high-temperature regenerator (8) andconnects with the high-temperature heat exchanger (4), thehigh-temperature heat exchanger (4) has a vapor channel connected withan expander (2), the expander (2) has a low-pressure vapor channelconnected with the high-temperature regenerator (8), the evaporator (6)has a low-pressure vapor channel connected with the compressor (1) andthe condenser (5) respectively after that the high-temperatureregenerator (8) has a low-pressure vapor channel connected with theevaporator (6), wherein the high-temperature heat exchanger (4) has theheat source medium channel connected with the outside, the condenser (5)has the cooling medium channel connected with the outside, or theevaporator (6) has the heat source medium channel connected with theoutside, the expander (2) connects with with the compressor (1) andtransmits power, wherein or the expander (2) connects with with thecompressor (1) and the pump (3) and transmits power.
 4. A combined cyclepower device comprising a compressor, an expander, a pump, ahigh-temperature heat exchanger, a condenser, an evaporator and thesecond high-temperature heat exchanger; wherein an evaporator (6) has avapor channel connects with the second high-temperature heat exchanger(9) after that a condenser (5) has a liquid refrigerant pipe whichpasses through a pump (3) and connects with the evaporator (6), thesecond high-temperature heat exchanger (9) has a vapor channel connectswith an expander (2), a compressor (1) has a vapor channel connects withthe high-temperature heat exchanger (4), the high-temperature heatexchanger (4) has a vapor channel which passes through a intermediatevapor inlet channel and connects with the expander (2), the evaporator(6) has a low-pressure vapor channel connected with the compressor (1)and the condenser (5) respectively after that the expander (2) has alow-pressure vapor channel connected with the evaporator (6), whereinthe high-temperature heat exchanger (4) and the high-temperature heatexchanger (9) have the heat source medium channels connected with theoutside, the condenser (5) has the cooling medium channel connected withthe outside, or the evaporator (6) has the heat source medium channelconnected with the outside, the expander (2) connects with with thecompressor (1) and transmits power, wherein or the expander (2) connectswith with the compressor (1) and the pump (3) and transmits power.
 5. Acombined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser and an evaporator;wherein an evaporator (6) has a vapor channel which passes through aintermediate vapor inlet channel and connects with an expander (2) afterthat a condenser (5) has a liquid refrigerant pipe which passes througha pump (3) and connects with the evaporator (6), a compressor (1) has avapor channel which passes through a high-temperature heat exchanger (4)and connects with the expander (2), the evaporator (6) has alow-pressure vapor channel connected with the compressor (1) and thecondenser (5) respectively after that the expander (2) has alow-pressure vapor channel connected with the evaporator (6), whereinthe high-temperature heat exchanger (4) has the heat source mediumchannel connected with the outside, the condenser (5) has the coolingmedium channel connected with the outside, or the evaporator (6) has theheat source medium channel connected with the outside, the expander (2)connects with with the compressor (1) and transmits power, wherein orthe expander (2) connects with with the compressor (1) and the pump (3)and transmits power.
 6. A combined cycle power device comprising acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and a high-temperature regenerator; wherein anevaporator (6) has a vapor channel which passes through a intermediatevapor inlet channel and connects with an expander (2) after that acondenser (5) has a liquid refrigerant pipe which passes through a pump(3) and connects with the evaporator (6), a compressor (1) has a vaporchannel which passes through a high-temperature regenerator (8) and ahigh-temperature heat exchanger (4) and connects with the expander (2),the expander (2) has a low-pressure vapor channel connected with thehigh-temperature regenerator (8), the evaporator (6) has a low-pressurevapor channel connected with the compressor (1) and the condenser (5)respectively after that the high-temperature regenerator (8) has alow-pressure vapor channel connected with the evaporator (6), whereinthe high-temperature heat exchanger (4) has the heat source mediumchannel connected with the outside, the condenser (5) has the coolingmedium channel connected with the outside, or the evaporator (6) has theheat source medium channel connected with the outside, the expander (2)connects with with the compressor (1) and transmits power, wherein orthe expander (2) connects with with the compressor (1) and the pump (3)and transmits power.
 7. A combined cycle power device comprising acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator and the second expander; wherein an evaporator(6) has a vapor channel connected with the second expander (10) afterthat a condenser (5) has a liquid refrigerant pipe which passes througha pump (3) and connects with the evaporator (6), the second expander(10) has a vapor channel connected with the evaporator (6), a compressor(1) has a vapor channel which passes through a high-temperature heatexchanger (4) and connects with the expander (2), the expander (2) has alow-pressure vapor channel connected with the evaporator (6), theevaporator (6) has a low-pressure vapor channel connected with thecompressor (1) and the condenser (5) respectively, wherein thehigh-temperature heat exchanger (4) has the heat source medium channelconnected with the outside, the condenser (5) has the cooling mediumchannel connected with the outside, or the evaporator (6) has the heatsource medium channel connected with the outside, the expander (2) andthe second expander (10) connect with the compressor (1) and transmitspower, wherein or the expander (2) and the second expander (10) connectwith the compressor (1) and the pump (3) and transmits power.
 8. Acombined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator anda heating unit; wherein an evaporator (6) has a vapor channel connectswith a high-temperature heat exchanger (4) after that a condenser (5)has a liquid refrigerant pipe which passes through a pump (3) andconnects with the evaporator (6), a compressor (1) has a vapor channelconnects with the high-temperature heat exchanger (4), thehigh-temperature heat exchanger (4) has a vapor channel connected withthe expander (2), the evaporator (6) has a low-pressure vapor channelconnected with a heating unit (7) after that the expander (2) has alow-pressure vapor channel connected with the evaporator (6), theheating unit (7) has a low-pressure vapor channel connected with thecompressor (1) and the condenser (5) respectively, wherein thehigh-temperature heat exchanger (4) has the heat source medium channelconnected with the outside, the condenser (5) has the cooling mediumchannel connected with the outside, or the evaporator (6) has the heatsource medium channel connected with the outside, the heating unit (7)has the heated medium channel connected with the outside, the expander(2) connects with with the compressor (1) and transmits power, whereinor the expander (2) connects with with the compressor (1) and the pump(3) and transmits power.
 9. A combined cycle power device comprising acompressor, an expander, a pump, a high-temperature heat exchanger, acondenser, an evaporator, the second high-temperature heat exchanger andthe second compressor; wherein an evaporator (6) has a vapor channelconnects with a high-temperature heat exchanger (4) after that acondenser (5) has a liquid refrigerant pipe which passes through a pump(3) and connects with the evaporator (6), a compressor (1) has a vaporchannel connects with the high-temperature heat exchanger (4), thehigh-temperature heat exchanger (4) has a vapor channel connected withthe second compressor (11), the second compressor (11) has a vaporchannel which passes through the second high-temperature heat exchanger(9) and connects with the expander (2), the evaporator (6) has alow-pressure vapor channel connected with the compressor (1) and thecondenser (5) respectively after that the expander (2) has alow-pressure vapor channel connected with the evaporator (6), whereinthe high-temperature heat exchanger (4) and the second high-temperatureheat exchanger (9) have the heat source medium channels connected withthe outside, the condenser (5) has the cooling medium channel connectedwith the outside, or the evaporator (6) has the heat source mediumchannel connected with the outside, the expander (2) connects with withthe compressor (1) and the second compressor (11) and transmits power,wherein or the expander (2) connects with with the compressor (1), thepump (3) and the second compressor (11) and transmits power.
 10. Acombined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator, thesecond high-temperature heat exchanger and the second expander; whereinan evaporator (6) has a vapor channel connects with a high-temperatureheat exchanger (4) after that a condenser (5) has a liquid refrigerantpipe which passes through a pump (3) and connects with the evaporator(6), a compressor (1) has a vapor channel connects with thehigh-temperature heat exchanger (4), the high-temperature heat exchanger(4) has a vapor channel connected with the second expander (10), thesecond expander (10) has a vapor channel which passes through the secondhigh-temperature heat exchanger (9) and connects with the expander (2),the evaporator (6) has a low-pressure vapor channel connected with thecompressor (1) and the condenser (5) respectively after that theexpander (2) has a low-pressure vapor channel connected with theevaporator (6), wherein the high-temperature heat exchanger (4) and thesecond high-temperature heat exchanger (9) have the heat source mediumchannels connected with the outside, the condenser (5) has the coolingmedium channel connected with the outside, or the evaporator (6) has theheat source medium channel connected with the outside, the expander (2)and the second expander (10) connect with the compressor (1) andtransmits power, wherein or the expander (2) and the second expander(10) connect with the compressor (1) and the pump (3) and transmitspower.
 11. A combined cycle power device comprising a compressor, anexpander, a pump, a high-temperature heat exchanger, a condenser, anevaporator, a high-temperature regenerator, the second high-temperatureheat exchanger and the second compressor; wherein an evaporator (6) hasa vapor channel which passes through a high-temperature regenerator (8)and connects with a high-temperature heat exchanger (4) after that acondenser (5) has a liquid refrigerant pipe which passes through a pump(3) and connects with the evaporator (6), a compressor (1) has a vaporchannel which passes through a high-temperature regenerator (8) andconnects with a high-temperature heat exchanger (4), thehigh-temperature heat exchanger (4) has a vapor channel connected withthe second compressor (11), the second compressor (11) has a vaporchannel which passes through the second high-temperature heat exchanger(9) and connects with the expander (2), the evaporator (6) has alow-pressure vapor channel connected with the compressor (1) and thecondenser (5) respectively after that the expander (2) has alow-pressure vapor channel which passes through a high-temperatureregenerator (8) and connects with the evaporator (6), wherein thehigh-temperature heat exchanger (4) and the second high-temperature heatexchanger (9) have the heat source medium channels connected with theoutside, the condenser (5) has the cooling medium channel connected withthe outside, or the evaporator (6) has the heat source medium channelconnected with the outside, the expander (2) connects with with thecompressor (1) and the second compressor (11) and transmits power,wherein or the expander (2) connects with with the compressor (1), thesecond compressor (11) and the pump (3) and transmits power.
 12. Acombined cycle power device comprising a compressor, an expander, apump, a high-temperature heat exchanger, a condenser, an evaporator, ahigh-temperature regenerator, the second high-temperature heat exchangerand the second expander; wherein an evaporator (6) has a vapor channelwhich passes through a high-temperature regenerator (8) and connectswith a high-temperature heat exchanger (4) after that a condenser (5)has a liquid refrigerant pipe which passes through a pump (3) andconnects with the evaporator (6), a compressor (1) has a vapor channelwhich passes through a high-temperature regenerator (8) and connectswith a high-temperature heat exchanger (4), the high-temperature heatexchanger (4) has a vapor channel connected with the second expander(10), the second expander (10) has a vapor channel which passes throughthe second high-temperature heat exchanger (9) and connects with theexpander (2), the evaporator (6) has a low-pressure vapor channelconnected with the compressor (1) and the condenser (5) respectivelyafter that the expander (2) has a low-pressure vapor channel whichpasses through a high-temperature regenerator (8) and connects with theevaporator (6), wherein the high-temperature heat exchanger (4) and thesecond high-temperature heat exchanger (9) have the heat source mediumchannels connected with the outside, the condenser (5) has the coolingmedium channel connected with the outside, or the evaporator (6) has theheat source medium channel connected with the outside, the expander (2)and the second expander (10) connect with the compressor (1) andtransmits power, wherein or the expander (2) and the second expander(10) connect with the compressor (1) and the pump (3) and transmitspower.
 13. The device according to any one of claim 1-12, wherein addingthe low temperature regenerator and the second pump, adjusting that thecondenser (5) has a liquid refrigerant pipe which passes through a pump(3) and connects with the evaporator (6) to that the condenser (5) has aliquid refrigerant pipe which passes through a pump (3) and connectswith a low temperature regenerator (12), the compressor (1) adds thevapor extraction channel connected with the low temperature regenerator(12), the low temperature regenerator (12) has a liquid refrigerant pipewhich passes through the second pump (13) and connects with theevaporator (6), a combined cycle power device is formed.